The seventh house is a weather system

The seventh is where the other stands: spouse, partner, client, open rival. Venus sweetens. Saturn slows. Mars heats. Rahu invents a foreign other.

A 'good' seventh does not promise a gentle marriage. A 'hard' seventh does not forbid one. Read the lord, the occupants, the navamsha if you have a trustworthy time. Then speak in climate, not contracts.